Quiz (1 point)

• m∠ABC = m∠CBA

• if the following are true:

  • a = b
  • b = c

  then a = c

• if a = b, then b = a

• if (m∠WSX = 180) and (m∠YTZ = 180) and (m∠WST = m∠STZ), then WX || YZ

Please write your proof in the table below. Each row should contain one claim. The last claim is the statement that you are trying to prove.